Electrically conductive pavement mixture
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United States of America Patent
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Dec 6, 2005
Grant Date -
Apr 1, 2004
app pub date -
Nov 16, 2001
filing date -
Nov 16, 2000
priority date (Note) -
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Abstract
An electrically conductive paving system that has enhanced conductivity of the conductive graphite/asphalt layer. This is achieved by incorporating into the paving mixture a blend of two naturally occurring crystalline flake graphites, one being coarse (generally larger than 40 mesh/425 microns) and the other being fine (generally smaller than 100-200 mesh/150-75 microns). The ratio of course flake graphite to fine flake graphite may be from 1.5:1 and 1:1.5, but is preferably approximately 1:1.
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